شباب احاول افلش x2 usb على الماكس يعطي الرسالة التالية

MXKEY Serial: C0833156
Library version: 1.0.0.9627(20-04-2011), 1.0.0.16202(20-04-2011)
Processing MCU file: rm598__06.90.mcusw
[BB5,XSR 1.6] size: 28.75 MB
Supported Ids: 0203192102004100, 020C192102004100, 0203192102024100, 020C192102024100, 0203192102044100, 020C192102044100
Make sure USB cable, Battery and charger are removed from device.
Insert USB cable, Battery back to device(make sure to have fully charged battery).
Insert Charger or Press phone's power button(if flashing doesnt start automatically)
Waiting for USB device ...
Bootstrap failed!